CN1715546A - Safety controller and its method for gas burning type clothes drier - Google Patents
Safety controller and its method for gas burning type clothes drier Download PDFInfo
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- CN1715546A CN1715546A CN 200410019796 CN200410019796A CN1715546A CN 1715546 A CN1715546 A CN 1715546A CN 200410019796 CN200410019796 CN 200410019796 CN 200410019796 A CN200410019796 A CN 200410019796A CN 1715546 A CN1715546 A CN 1715546A
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- blast fan
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- clothes drier
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Abstract
The safety controller of the gas burning clothes drier includes key input unit, voltage sensing unit, temperature sensing unit, microprocessor and load driving unit. After the start command is input in the key input unit and minimum igniting condition is met, the voltage sensing unit senses the grade of the voltage from the power supply, the temperature sensing unit senses the temperature of the igniter, the microprocessor controls the igniter and the gas valves based on the voltage grade and the temperature of the igniter, and the load driving unit controls the motor and the fan based on the control signal from the microprocessor. The present invention controls the gas valves and selective drive of the igniter based on the input voltage to avoid the gas leakage and other accident caused by failed ignition in advance. In addition, the present invention can prevent circuit damage caused by high voltage to prolong the service life of the product.
Description
Technical field
The present invention relates to a kind of clothes drier, relate in particular to safety control and method (Method and apparatus forcontrolling safety of a wear dryer for using a gas) thereof that a kind of cylinder rear side is equipped with the combustion type clothes drier of blowtorch (burner).
Background technology
Clothes drier roughly is divided into and sucks exhaust clothes drier that extraneous air comes drying clothes and remove moisture in general, the humidity condensed of being removed is become condensation after the water droplet shape and eject remove the wet type clothes drier.
Combustion type clothes drier according to prior art is described with reference to the accompanying drawings.Fig. 1 is the internal cross section schematic diagram according to the combustion type clothes drier of prior art.
As shown in the figure, be provided with the cylinder 55 that is used for drying clothes in the casing 50 according to the combustion type clothes drier of prior art, described cylinder 55 is connected drive motors (not illustrating among the figure) and rotates with connecting band 57.The barrel shape of the circle of side opening before and after cylinder 55 forms, its front side opens and closes by drier door 51, and its rear side closes by the bonnet (rear case) 52 that forms casing 50.Bonnet 52 rear sides are provided with back cover (back cover) 53.And be provided with heater 60 between bonnet 52 and the back cover 53.
Above-mentioned heater 60 is made of with fan 63, mist supply pipe 61, igniter (igniter) 66, burning smoke sensing bar 67 burning.Described burning is connected to the rear of cylinder 55 with fan 63 and mist supply pipe 61 lower inner part at back cover 53, air mixture and extraneous air and supply with; Described igniter 66 is fixed between the bonnet 52 and back cover 53 at rear of cylinder 55, and the gas from the nozzle ejection of mist supply pipe 61 is lighted a fire; Described burning smoke sensing bar 67 be arranged on mist supply pipe 61 nozzles near.
In addition, also be provided with the mode that receives behind the heat that heater 60 produces with transfer of radiant heat on the above-mentioned bonnet 52 and be delivered to heat liberation board 70 in the cylinder 55.Described heat liberation board 70 is formed by the metal material or the ceramic material of loose structure, and making it possible to transmit the photothermal while can also be by the air of heating.The top of heat liberation board 70 is formed with the suction inlet 52a that makes in the heated air inflow cylinder that produces by heater 60.The bonnet 52 that is equivalent to the front side of heat liberation board 70 is provided with the catch net 75 that the clothes that prevents in the cylinder 55 directly contacts heat liberation board 70.The heated air that the place ahead downside of cylinder 55 has behind the discharge drying clothes is the discharge duct 58 of hot blast, is provided with the air blast (blower) 59 of forcibly discharging air in the described discharge duct 58.
Adopt the effect of combustion type drying machine of aforesaid radial pattern heater as described below.
After dropping into the clothes that needs drying in the cylinder 55, start drying machine.Effect cylinder 55 and air blast 59 by drive motors begin rotation.Meanwhile, when burning moved with fan 63, extraneous air and combustion gas flowed into by mist supply pipe 61.Burnt by igniter 66 igniting at the end of mist supply pipe 61 this moment.The part of the calory burning of Xing Chenging is delivered to heat liberation board 70 like this.Heat liberation board 70 passes through the transfer of radiant heat mode again to cylinder 55 internal delivery heats.Hole and the suction inlet 52a on heat liberation board 70 tops of all the other calory burnings by being formed on heat liberation board 70 is delivered in the cylinder 55 and drying clothes in addition.The air of drying clothes is discharged to casing 50 outsides along with air blast 59 by discharge duct 58 when transmitting radiations heat energy and convection heat in the cylinder.
But, aforesaid combustion type clothes drier is lighted the combustion gas that mist supply pipe 61 is supplied with by the heating of igniter 66, motor when applying low-voltage (not illustrating among the figure) or Air Blast fan 63 can start, because loss of ignition takes place in the heating of igniter 66 minimizing, thereby may leak combustion gas and safety is brought huge hidden danger.
Summary of the invention
In order to solve the problems of the technologies described above, the purpose of this invention is to provide after the sensing input power source voltage according to being the safety control and the method thereof of the combustion type clothes drier of the above of predefined reference voltage or the driving of controlling combustion gas to get off.
The technical solution adopted for the present invention to solve the technical problems is:
In the combustion type clothes drier with motor, Air Blast fan, igniter, several first air valves and second air valve, combustion type clothes drier according to the present invention includes key input part, voltage sensing portion, temperature sensing portion, microprocessor, load drive division.Described key input part input operation person's requirement order; By key input part input startup command, and after satisfying the igniting lowest term, the voltage level that described voltage sensing portion sensing is supplied with from power suppling part; Described temperature sensing portion is used for the temperature of sensing points firearm; Described microprocessor according to sense by voltage sensing portion voltage level and come the optionally driving of control point firearm and several first, second air valves by the igniter temperature that temperature sensing portion senses; Described load drive division is controlled the driving of motor and Air Blast fan according to microprocessor control signal.Above-mentioned microprocessor is only controlled drive motors and Air Blast fan when the voltage that senses by voltage sensing portion is different from predefined reference voltage.
In the method for controlling security of combustion type clothes drier, comprise that according to the method for controlling security of combustion type clothes drier of the present invention the operator imports startup command rear drive motor and Air Blast fan makes it reach the stage of predefined igniting lowest term with motor, Air Blast fan, igniter, first and second air valve; Reach the stage of the voltage imported of sensing after the igniting lowest term; Whether reach predefined normal voltage and control point firearm and first, second air valve according to the input voltage that senses, the stage of the driving of motor and Air Blast fan.
Thereby above-mentioned drive motors and Air Blast fan make its stage that reaches predefined igniting lowest term be specially drive motors and rotate Air Blast fan, judge whether the rotary speed of Air Blast fan rises to the above stage of predefined speed.
It is following low-voltage of predefined normal voltage or normal voltage or above high-tension stage of normal voltage that the stage of above-mentioned sensing input voltage is specially the voltage that judgement imports.
Above-mentioned control point firearm and first, second air valve are just not drive point firearm and first, second air valves of normal voltage if the stage of the driving of motor and Air Blast fan is specially the voltage of input, the stage of a drive motors and Air Blast fan.And control point firearm and first, second air valve, the stage of the driving of motor and Air Blast fan comprises the stage of continuing drive motors and Air Blast fan when opening second air valve when voltage of being imported only drives stage of first air valve and igniter and igniter when being low-voltage or high voltage temperature is greater than design temperature lights a fire.
Safety control and method thereof according to combustion type clothes drier of the present invention have following effect.
According to input voltage, the switching and the drive point firearm optionally of control air valve, thus prevent loss of ignition in advance and caused security incident such as gas leakage.In addition owing to can prevent the circuit that high voltage causes in advance and damage, thereby prolonged service life of product.
Figure of description
Fig. 1 is the internal cross section schematic diagram according to the combustion type clothes drier of prior art.
Fig. 2 is the block schematic diagram according to the safety control of combustion type clothes drier of the present invention.
Fig. 3 is the schematic flow sheet according to the method for controlling security of combustion type clothes drier of the present invention.
The critical piece description of reference numerals
101: power suppling part 102: temperature sensing portion
103: voltage sensing portion 104: microprocessor
106: the second air valves of 105: the first air valves
107: motor 108: Air Blast fan
109: load drive division 110: igniter
The specific embodiment
Describe the safety control and the method thereof of combustion type clothes drier with reference to the accompanying drawings in detail.Fig. 2 is the block schematic diagram according to the safety control of combustion type clothes drier of the present invention; Fig. 3 is the schematic flow sheet according to the method for controlling security of combustion type clothes drier of the present invention.
As shown in Figure 2, the safety control according to combustion type clothes drier of the present invention includes key input part 100, power suppling part 101, voltage sensing portion 103, igniter 110, temperature sensing portion 102, microprocessor 104, load drive division 109.Described key input part 100 input operation persons' requirement order; After key input part 100 input startup command, described power suppling part 101 is to the drying machine supply power; The voltage level that described voltage sensing portion 103 sensings are supplied with from power suppling part; Described temperature sensing portion 102 is used for the temperature of sensing points firearm; Described microprocessor 104 is controlled the ON/OFF of first and second air valve 105,106, and is optionally controlled the driving of motor 107 and Air Blast fan 108 according to the sensing result by voltage sensing portion 103 and temperature sensing portion 102; Described load drive division 109 is according to the control signal of microprocessor 104, drive motors 107 and Air Blast fan 108.
The following describes running according to combustion type clothes drier safety device of the present invention.
After at first the operator imported startup command by key input part 100, motor 107 and Air Blast fan 108 were driven, at the rotary speed rpm of Air Blast fan 108 run durations monitoring Air Blast fan 108.If the rotary speed rpm of detected Air Blast fan 108 greater than predefined reference speed 1200rpm, just is judged as the igniting lowest term, and from voltage sensing portion 103 judgement input voltages.When input voltage is predefined normal voltage, open first air valve 105 and igniter 110, and grasp and to open second air valve 106 behind the febrile state of igniter 110 and light a fire.If input voltage is less than the low-voltage of predefined normal voltage or closes first and second air valve 105,106 when being higher than the high voltage of normal voltage.Under the state of closing igniter 110, continue drive motors 107 and Air Blast fan 108 in addition, thereby come drying clothes down to the wind-force that produces by Air Blast fan 108 at the idle state of combustion gas.
Below with reference to the method for controlling security of Fig. 3 explanation according to combustion type clothes drier of the present invention.Whether decision operation person imports startup command (S101～S102) after the input electric power starting order.
According to above-mentioned S102 judged result, if the operator has imported startup command, with regard to drive motors and Air Blast fan (S103).
And, the rotary speed rpm (S104) of monitoring Air Blast fan.
Whether the rotary speed rpm that judges the Air Blast fan that monitors is greater than predefined rotary speed 1200rpm (S105).
According to above-mentioned S105 judged result, if greater than predefined rotary speed 1200rpm, just be judged as the lowest term that can light a fire, and the voltage (S106) of sensing input.
Judge whether the input voltage that senses is predefined normal voltage (S107).
According to above-mentioned S107 judged result,, the input voltage that senses just only starts first air valve and igniter (S111) if being predefined normal voltage.
Judgement produces radiant heat and whether starts frame sensor along with the heating of igniter.Judge promptly whether temperature is increased to predefined temperature above (S112).
According to above-mentioned S112 judged result, when frame sensor starts, start second air valve and light a fire (S113).
After finishing, drying finishes (S109).
According to above-mentioned S107 judged result, when the input voltage that senses is not predefined normal voltage, igniter, first and second air valve all closing state and come drying clothes (S108) down to drive motors and Air Blast fan by the wind that produces.
Aforesaid safety control and control method thereof according to combustion type clothes drier of the present invention, after the sensing input power source voltage, if when low-voltage or high voltage, set feasible starter motor 107 of microprocessor and Air Blast fan 108, and under the idle state of combustion gas, carry out drying by Air Blast fan 108.High-tension situation is the situation that high voltages such as the power supply 240V that makes mistakes that power line connection error etc. causes are connected to the 120V circuit, so the control product does not start and prevents that circuit is damaged.
Claims (7)
1, a kind of safety control of combustion type clothes drier is arranged on and has motor, in the combustion type clothes drier of Air Blast fan, igniter, several first air valves and second air valve, it is characterized in that, comprising:
Key input part, voltage sensing portion, temperature sensing portion, microprocessor, load drive division;
Described key input part input operation person's requirement order;
By key input part input startup command, and after satisfying the igniting lowest term, the voltage level that described voltage sensing portion sensing is supplied with from power suppling part;
Described temperature sensing portion is used for the temperature of sensing points firearm;
Described microprocessor according to sense by voltage sensing portion voltage level and come the optionally driving of control point firearm and several first, second air valves by the igniter temperature that temperature sensing portion senses;
Described load drive division is controlled the driving of motor and Air Blast fan according to microprocessor control signal.
2, the safety control of combustion type clothes drier according to claim 1 is characterized in that:
Above-mentioned microprocessor is only controlled drive motors and Air Blast fan when the voltage that senses by voltage sensing portion is different from predefined reference voltage.
3, a kind of method of controlling security of combustion type clothes drier is used in and has motor, in the combustion type clothes drier of Air Blast fan, igniter, first and second air valve, it is characterized in that, comprising:
The operator imports startup command rear drive motor and Air Blast fan makes it reach the stage of predefined igniting lowest term;
Reach the stage of the voltage imported of sensing after the igniting lowest term;
Whether reach predefined normal voltage and control point firearm and first, second air valve according to the input voltage that senses, the stage of the driving of motor and Air Blast fan.
4, the method for controlling security of combustion type clothes drier according to claim 3 is characterized in that:
Thereby above-mentioned drive motors and Air Blast fan make its stage that reaches predefined igniting lowest term be specially drive motors and rotate Air Blast fan, judge whether the rotary speed of Air Blast fan rises to the above stage of predefined speed.
5, the method for controlling security of combustion type clothes drier according to claim 3 is characterized in that:
It is following low-voltage of predefined normal voltage or normal voltage or above high-tension stage of normal voltage that the stage of above-mentioned sensing input voltage is specially the voltage that judgement imports.
6, the method for controlling security of combustion type clothes drier according to claim 3 is characterized in that:
Above-mentioned control point firearm and first, second air valve are just not drive point firearm and first, second air valves of normal voltage if the stage of the driving of motor and Air Blast fan is specially the voltage of input, the stage of a drive motors and Air Blast fan.
7, the method for controlling security of combustion type clothes drier according to claim 3 is characterized in that:
Above-mentioned control point firearm and first, second air valve, the stage of the driving of motor and Air Blast fan comprises the stage of continuing drive motors and Air Blast fan when opening second air valve when voltage of being imported only drives stage of first air valve and igniter and igniter when being low-voltage or high voltage temperature is greater than design temperature lights a fire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410019796 CN1715546A (en) | 2004-06-28 | 2004-06-28 | Safety controller and its method for gas burning type clothes drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410019796 CN1715546A (en) | 2004-06-28 | 2004-06-28 | Safety controller and its method for gas burning type clothes drier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1715546A true CN1715546A (en) | 2006-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410019796 Pending CN1715546A (en) | 2004-06-28 | 2004-06-28 | Safety controller and its method for gas burning type clothes drier |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100319213A1 (en) * | 2007-02-08 | 2010-12-23 | Yang-Ho Kim | Hot air generating apparatus and dryer having the same |
| CN101673932B (en) * | 2009-10-14 | 2012-10-10 | 南京乐金熊猫电器有限公司 | Low-voltage cutting device and method for driers |
| CN107245863A (en) * | 2017-07-17 | 2017-10-13 | 无锡小天鹅股份有限公司 | The Iganition control system of fuel gas dryer and the fuel gas dryer with it |
-
2004
- 2004-06-28 CN CN 200410019796 patent/CN1715546A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100319213A1 (en) * | 2007-02-08 | 2010-12-23 | Yang-Ho Kim | Hot air generating apparatus and dryer having the same |
| CN101673932B (en) * | 2009-10-14 | 2012-10-10 | 南京乐金熊猫电器有限公司 | Low-voltage cutting device and method for driers |
| CN107245863A (en) * | 2017-07-17 | 2017-10-13 | 无锡小天鹅股份有限公司 | The Iganition control system of fuel gas dryer and the fuel gas dryer with it |
| CN107245863B (en) * | 2017-07-17 | 2019-10-25 | 无锡小天鹅电器有限公司 | The Iganition control system of fuel gas dryer and fuel gas dryer with it |
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